There has been data ("(折地図)デュッセルドルフ・ケルン・ボン [JALシティーガイドマップ] (JALシティガイドマップ)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Mon Feb 3 16:10:22 2020, so the data displayed here has been removed .